diff --git a/_layouts/chapter.html b/_layouts/chapter.html
index 0abdb51..31d074e 100644
--- a/_layouts/chapter.html
+++ b/_layouts/chapter.html
@@ -4,14 +4,20 @@
 
   <!-- Announcement we can keep for 1 month or more. I remove it and re-add it from time to time. -->
 
-<p class="announce">
-  📢 👩‍🎓 ⭐
-  <a style="font-size: 120%" href="https://www.udemy.com/course/common-lisp-programming/?couponCode=LISP-IS-NOT-DEAD"
-      title="Learn Lisp efficiently with a code-first approach. Getting started, CLOS, macros… 7 hours of content, and counting. This course is on the Udemy platform. Each chapter has free videos so you can judge before diving in. vindarel is (I am) the main contributor of this Cookbook. I teach what I learned the hard way.">NEW: learn CLOS in videos! (50% coupon)</a>, by the Cookbook's main contributor.
-  <!-- <strong>
-       Get up to speed in CL in this 7h course, by the Cookbook's main contributor, on Udemy.
-       </strong> -->
-  <a style="font-size: 90%" href="https://github.com/vindarel/common-lisp-course-in-videos/">Learn more</a>.
+<!-- <p class="announce"> -->
+<!--   📢 👩‍🎓 ⭐ -->
+<!--   <a style="font-size: 120%" href="https://www.udemy.com/course/common-lisp-programming/?couponCode=LISP-IS-NOT-DEAD" -->
+<!--       title="Learn Lisp efficiently with a code-first approach. Getting started, CLOS, macros… 7 hours of content, and counting. This course is on the Udemy platform. Each chapter has free videos so you can judge before diving in. vindarel is (I am) the main contributor of this Cookbook. I teach what I learned the hard way.">NEW: learn CLOS in videos! (50% coupon)</a>, by the Cookbook's main contributor. -->
+<!--   <\!-- <strong> -->
+<!--        Get up to speed in CL in this 7h course, by the Cookbook's main contributor, on Udemy. -->
+<!--        </strong> -\-> -->
+<!--   <a style="font-size: 90%" href="https://github.com/vindarel/common-lisp-course-in-videos/">Learn more</a>. -->
+<!-- </p> -->
+
+<p class="announce announce-green">
+  📢
+  <a style="font-size: 120%" href="https://web-apps-in-lisp.github.io/"
+      title="">NEW: Web Apps In Lisp, Know-how</a>. Learn web development in Common Lisp.
 </p>
 
 
diff --git a/assets/style.scss b/assets/style.scss
index f13874f..a3dceab 100644
--- a/assets/style.scss
+++ b/assets/style.scss
@@ -172,6 +172,11 @@ footer {
     margin: 1em 0 1em 0;
 }
 
+.announce-green {
+    // background-color: MediumAquamarine
+    background-color: MediumAquamarine
+}
+
 .announce a {
     text-decoration: underline;
     // color: white;
diff --git a/web.md b/web.md
index 720ec90..2b8311b 100644
--- a/web.md
+++ b/web.md
@@ -30,6 +30,11 @@ application. We do *not* aim to be exhaustive nor to replace the
 upstream documentation. Your feedback and contributions are
 appreciated.
 
+<div class="info" style="background-color: #e7f3fe; border-left: 6px solid #2196F3; padding: 17px;">
+<!-- if inside a <p> then bootstrap adds 10px padding to the bottom -->
+<strong>INFO:</strong> a new website now specializes on web development in Common Lisp: <a href="https://web-apps-in-lisp.github.io/">Web Apps in Lisp, Know-how</a> (<a href="https://github.com/web-apps-in-lisp/web-apps-in-lisp.github.io/">sources</a>).
+</div>
+
 
 <!-- form creation, form validation -->
 
@@ -1172,6 +1177,7 @@ row.
 
 ## See also
 
+- [Web Apps in Lisp, Know-how](https://web-apps-in-lisp.github.io/)
 - [Feather](https://hg.sr.ht/~wnortje/feather), a template for web
   application development, shows a functioning Hello World app
   with an HTML page, a JSON API, a passing test suite, a Postgres DB
@@ -1180,7 +1186,6 @@ row.
   a simple project template with Hunchentoot, Easy-Routes, Djula and Bulma CSS.
 - [lisp-web-live-reload-example](https://github.com/vindarel/lisp-web-live-reload-example/) -
   a toy project to show how to interact with a running web app.
-- [lisp-journey: enrich your stacktrace with session and user data](https://lisp-journey.gitlab.io/blog/common-lisp-on-the-web-enrich-your-stacktrace-with-request-and-session-data/)
 - [video: how to build a web app in Lisp · part 1](https://www.youtube.com/watch?v=h_noB1sI_e8) featuring Hunchentoot, easy-routes, Djula templates, error handling, common traps.
 
 ## Credits